<param name="scan" value="scan" />
<param name="delta" value="0.01" />
<param name="map_update_interval" value="30" />
<param name="linearUpdate" value="0.5" />
<param name="angularUpdate" value="0.25" />
<param name="scan" value="scan" />
<param name="delta" value="0.01" />
<param name="map_update_interval" value="30" />
<param name="linearUpdate" value="0.5" />
<param name="angularUpdate" value="0.25" />